Southern Nevada Cryptosporidiosis Cases Increase

Armen Hareyan's picture

Southern Nevada Health District is advising the community of an increase in the number of cases of cryptosporidiosis (Crypto) in the community.

Crypto is a contagious, parasitic infection found in the stools of infected individuals that causes diarrhea. It can be spread from person-to person and it is commonly spread at recreational aquatic facilities. Currently, there are seven confirmed cases that have been reported in Clark County since August 1 and there are additional outbreaks in Colorado, Idaho, Iowa and Utah as well as several other states. The last outbreak in the Las Vegas area occurred in 1994.

Crypto can be spread by swallowing recreational water contaminated with the parasite. Sources can include swimming pools, hot tubs, Jacuzzis, rivers, lakes, springs, ponds, streams or other water sources. Additional sources of transmission occur by ingesting something that has come into contact with the stool of an infected person or animal or touching a contaminated surface and then touching your mouth.


Symptoms include profuse, watery diarrhea, low-grade fever, abdominal pain and weight loss, and can appear one to 12 days following exposure. The illness can last from one to 20 days in healthy individuals, including children. Infected individuals can spread the illness for several weeks after symptoms resolve. It is also recommended that they refrain from visiting swimming pools for approximately two weeks after symptoms resolve.

Although the illness can infect all people, young children, pregnant women and individuals with weakened immune systems are at risk for more serious disease.

To minimize the risks of contracting the illness, the health district recommends good hygiene practices: